Winding machine



Jan, 26, 1932.. c. K. DUNLAP 1,842,718

W'LNDING MACHINE Filed March 26, 1929 g'nvewtoz Patented Jan. 26, 1932 UNITED STATES GHARLES K. DUNLAIE, 0F HA'RTSVILLE, SOUTH CAROLINA WINDING MACHINE Application filed March 26, 1929. Serial No. 350,087.

This invention relates to winding machines and particularly to the tube holding devices commonly employed on such machines.

5 Various types of machines for winding thread or yarn upon tubes or cones are wellknown in the textile industries, and the Foster winding machine, upon which the present invention is an improvement, is well-known to those skilled in the art. Each winding machine or this type includes a plurality of hor inontally arranged pivoted arms upon which the tubular or conical thread cores are placed.

Each of the arms has an operative position, 15 in which position the thread actually wound upon the core, and an inoperative position to which it may be swung for the purpose of removing a completed thread package and its core and emplacement of an empty tube or cone. T his operation is well-known. lhe present invention relates particularly to the swinging arms of the winding machine and has for its object the provision of a device by means oi which tubular thread cores may be more securely held thereon during the winding operation, without at the same time imposing an obstacle in the way of the easy and rapid removal and replacement of the tubes upon the supporting arms by the operator.

Various types of devices for securing the tubes upon these arms have heretofore been designed or s1 H ested. The majority of these devices require distortion of the tube or the cutting or abrasion of its inner wall. This it is possible to do where the tubes are formed of soft material, such as untreated paper, but on the other han d where the tubes which coniprise the thread cores are subject-ed to a hardening step to render them resistant to highly heated dye liquids in a subsequent operation in which the thread is dyed, it found impossible to properly secure them on the winding arms by the means which has been heretofore employed for this purpose. Such hardened tubes cannot readily be deformed, nor can their surfaces be penetrated by the ordinary tube holding means heretofore utilizcd,

The present invention is directed particularly, therefore, to the provision of means which may be readily added to the swinging supporting arms of existing winding machines, to replace any tube holding instrumentalities with which such arms have heretofore been provided, whereby it becomes possible to secure tubes in position, particularly the hardened tubes now coming into vogue, and without at the some time forming a hindrance to the operator by obstructing the ready removal and replacement of such tubes.

The in vrntion may have various forms and in the accompanying drawings one form is illustrated by way of example.

In the drawings:

Figure l is a side elevation of one of the swinging arms or" a Foster winding machine, showing the securing means attached thereto;

Figure 2 is a sectional view therethrough;

Figure Sis an exploded View of the several parts which go to make up the device, these parts being shown in perspective; and

Figure 4 is a view of the end of the swinging arm showing a tube of greater length thereon.

Each of the swinging arms comprises two main portions, an arbor 1O rigid with a base 11 which is pivotally mounted upon the winding machine for movement in a horizontal plane, and a sleeve 12 rotatably mounted on tl e arbor. The outer diameter of sleeve 12 is only slightly smaller than the inner diameter of the paper tubes, one of which is indicated at 18, which they are designed to rotatably support during the winding operation. Generally speaking, the devices for securing the paper tubes upon the sleeves 12 have heretofore constituted blade-like projections or the like positioned upon the outer surface of the sleeve and adapted either to detent the tube as it is placed in position or to cut into its inner wall. As before set forth, it is not possible to readily cut paper tubes which have been chemically treated and hard cued, and neither is it possible to readily spring these tubes so that they are of noncircular cross section. The retaining means which forms the subject matter of the present invention con'iprises a resilient device which can be secured to the end of the arbor and which resiliently engages with the inside of the tube or its outer end to prevent displacement. This device is so designed and lustrated and will be seen to comprise a cupshaped base 14 and a plurality of resilient spring fingers 15.

drical surface of a stud .17 which is co-ax al with the arbor 10. This stud 17 has a head 18 which retains member 16 in position and also a shoulder 19 which retains the washer 20. WVasher 2O prevents axial movement of 1 the sleeve 12 on arbor 10. The spring fingers will be engaged by the projections 210i the may be two or more in number, and in the form illustrated I employ four. Each is sub stantially straight, but is curved somewhat at its outer end to provide outwardly projecting portions 21, constitutingshoulders. Beyond shoulders 21 the spring fingers are inturned.

By forming them in this manner, it will be readily seen that a tube may be easily-passed over the resilient retaining device and onto the sleeve and also that, when the tube is positioned properly on the sleeve, its outer end spring fingers so that the tube may notescape axially from its support. 7

In windingthread or yarn on one of the tubes the sleeve 12 rotates on its arbor 10 and the resilient retaining device likewise rotates upon the stud 17. When the tube is fully wound, it may be quickly and easily removed by the operator who simply draws it oil of the sleeve, deflecting the sprin fingers 15 inwardly, and replaces the fully wound core or tube with one-upon which no yarn or thread has yet been placed' This removal and replacement may be efi ecte'd very quicklyandwith no substantial opposition on the part of the resilient retaining device.

The above described retainin device is particularly adapted for installation on existing winding machines, and inmaking such installation it is onlynecessaryto remove the usual stud, which has threaded engagement with the endof the arbor, and is provided for the purpose of holdinga washer suchas in position so that the sleeve 12 cannot escape,

with anew stud especially formed, as 'for instance that shown in the drawings, At the same time, or": course, the resihent retaining device is added. The resilient devicejitsel'f may be formed in any one of a number of different ways, and that form disclosed is given by way of example only. It may or may not have an added part such as 16 by I means of which it is supported for rotation on the stud. 1

'In the event that longertubes than, those.

Within the cup-shaped base 14: is positioned an annular member l6. which is rotatably mounted upon the cylin-' ment.

shown in Figures 1 and 2 are placed on the swinging arm, the tube will extend beyond the ends of the spring fingers of the retaining device, as shown in Figure 4. The spring fingers will neverthelws exert such pressure upon the inner wall that the tube Willbe securely retained in'position. It is apparent therefore that the device may be used with tubesofvarying lengths.

Having thus describ dthe invention, what 1 "-ISClELlIHQQl-EIS new and-des1red to be secured by Letters Patent is:

i 1. 'The combination with the tube holding member of a winding machine, comprising an arbor, a tube receiving sleeve rotatably mounted on the arbor, of a member rotatably mounted on the arbor beyond the end of'the sleeve, said member having resilient means to engage a tube mounted on the sleeve and to present such tube from accidentally sliding off of the sleeve, said'resilient means being deformable to permit manual emplacement and removal of the tube. i .1

2; The combination with the tube holding member Ora winding machine, comprising an arbor a tube receiving; sleeve rotatably mountedon the arbor, ofa member rotatably mounted on the arbor beyond the end of the sleeve, said member having a plurality of sp ing fingers which. are deformed when a tube is placed on the sleeve and which resiliently engage the. end of a tube so positioned to prevent its accidental displaceplaced on the sleeve, said means being de-' formable to permit manual removal of the tube; 2

In testimony whereof signature. 7

CHARLES K. DUNLAP.

I hereuntoafiix my 

